1961298 has 12 divisors (see below), whose sum is σ = 4249518. Its totient is φ = 653760.

The previous prime is 1961257. The next prime is 1961321. The reversal of 1961298 is 8921691.

It can be written as a sum of positive squares in only one way, i.e., 1447209 + 514089 = 1203^2 + 717^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54463 + ... + 54498.

2^1961298 is an apocalyptic number.

1961298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1961298 is an abundant number, since it is smaller than the sum of its proper divisors (2288220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1961298 is a wasteful number, since it uses less digits than its factorization.

1961298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108969 (or 108966 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 1961298 is about 1400.4634947045. The cubic root of 1961298 is about 125.1741146933.

The spelling of 1961298 in words is "one million, nine hundred sixty-one thousand, two hundred ninety-eight".